The statements concern psychrometric chart. 1. Constant

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The statements concern psychrometric chart.
1. Constant relative humidity lines are uphill straight lines to the right.
2. Constant wet bulb temperature lines are downhill straight lines to the right.
3. Constant specific volume lines are downhill straight lines to the right.
4. Constant enthalpy lines are coincident with constant wet bulb temperature lines.
Which of the statements are correct?

1. 2 and 3
2. 1 and 2
3. 1 and 3
4. 2 and 4

Correct Option: A

NA